JPS5937986Y2 - Grounded waterproof outlet - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a waterproof outlet.

Conventionally, this type of waterproof outlet is shown in Figures 9 and 10.
As shown in the figure, the conventional example shown in FIG. Since the electric wire 4 cannot be connected from the bottom of the connector body 3
The electric wire 4 has to be connected from the rear side, which has the disadvantage that the connection work is time-consuming, and in the conventional example shown in FIG. 10, the connector body 3 is fixed from the front side of the case 8 with mounting screws 9. Therefore, installation is troublesome and the heads of the mounting screws 9 are exposed on the front side of the case 8, which is an inconvenience.

The present invention has been made in view of the above points, and its purpose is to provide a waterproof outlet that has simple parts, is easy to manufacture, and is easy to assemble.

Examples will be described below using figures.

1 to 8 show embodiments of the present invention, and 3 in the figures shows the interior of the main case 13 formed by a synthetic resin container 11 and a lid 12 that covers the top surface of the container 11. The main body of the connector is constructed by incorporating a pair of power receiving blades 1 having spring properties and one grounding blade 2, which are located on substantially the same plane on the rear side of the receiving blades 1 and 2. A connecting terminal 10 electrically connected to each of the receiving blades 1 and 2 is arranged.

This allows the connector main body 2 to be made as thin as possible.

These quick connection terminals 10 are composed of a terminal frame 10a connected to each receiving blade 1, 2 and a connecting spring 10b, and the terminal frame 1
An electric wire insertion port 30 that communicates with the electric wire 4 insertion portion between Oa and the connection spring 10b opens on the lower surface side of the connector main body 3, so that the electric wire 14 can be inserted and connected from below.

Reference numeral 5 denotes a square, flat plate-like cover made of synthetic resin that is placed on the front surface of the connector main body 3, and an engagement step 15' consisting of a recessed step is provided around the outer circumferential surface of the cover 5. A blade insertion hole 4 communicating with the blade holders 1 and 2, respectively, is bored in the center side.

Reference numeral 8 denotes a case for an outlet, which is constructed by providing openings 6 and 7 on the lower side and front side of the box body, respectively, and a rainproof wall 17 is provided around the outer periphery of the front opening 6. An engagement step 15' of the cover 5 is adapted to engage with the inner peripheral edge of the front opening 6.

Reference numeral 15 denotes a positioning projection protruding from the inner wall portion of the case 8, which can freely engage with an engagement recess 16 provided on the upper surface of the connector main body 3.

Now, the connector main body 3 assembled as shown in Fig. 2
The protrusion 5a on the back side of the cover 5 is fitted into the front opening 3a, and in this state, the connector main body 3 is stored in the case 8 through the lower opening 7 of the case 8, and the engaging recess 16 is used for positioning. By engaging the protrusion 15, the connector body 3
is positioned at a predetermined position in the case 8, and at this time, the front surface of the main body case 13 of the connector main body 3 comes into contact with the inner surface of the cover 5, so that the engaging stepped portion 15' of the cover 5 engages with the front opening of the case 8. The cover 5 is positioned so as not to retreat inwardly while being engaged with the portion 6 from the inside.

In other words, by positioning the connector main body 3 so that the front surface of the main body case 13 comes into contact with the inner surface of the cover 5, the inward movement of the cover 5 is prevented, and the engaging stepped portion 15' of the cover 5 is prevented from moving inward. This prevents the cover 8 from being disengaged from the front opening 6 of the case 8, and the cover 8 is positioned at a predetermined position.

Note that if the protrusion 5a protruding from the back side of the cover 5 is fitted into the front opening of the connector body 3 as in the embodiment, the connector body 3 and the cover 5 are integrated. This makes the assembly work easier.

In this case, it goes without saying that the connector main body 3 and the cover 5 are not fixed and may fit together with some play.

The connector main body 3 and the cover 5, which have been positioned at a fixed position in the case 8 as described above, are screwed from below into the screw holes 3b on both sides of the container body 11 of the main body case 13 of the connector main body 3. It is fixed within the case 8 by screwing the installed mounting screw 9 into the lower surface of the positioning protrusion 15.

19 is the ground terminal, 20 is the cord holder, 21 is the case 8
This is the bottom cover.

Reference numeral 22 denotes a door which is biased in the direction of closing the plug blade insertion hole 4 of the cover 5 by a spring 23', and closes the plug blade insertion hole 4 to prevent water from entering inside when the plug blade is not inserted. The terminal plate 23 is electrically connected to the ground terminal 19, and the lower part is fixed to the bottom cover 21, and the upper part is connected to the lower piece 24 of the ground receiving blade 2 by dowel connection.

As shown in FIG. 7, engagement notches 25 are provided on both sides of the upper end of the terminal plate 23, and an engagement protrusion 26 that engages with each engagement notch 25 is provided at the tip of the lower piece 24 to secure the terminal. The plate 23 and the lower piece 24 of the receiving blade 2 may be connected. In this way, the terminal plate 23 and the lower piece 24 can be connected only by horizontal compression as shown in FIG. Not only are there no need for screws or rivets, but there is also no need to apply vertical pressure to connect the connector body 3.
This will prevent damage to the product.

In the grounding type waterproof outlet constructed as described above, the lower surface of the bottom cover 21 is fixed to a wall surface, etc., the front side is facing down, and a plug with a grounding plug (not shown) is inserted from the lower side. used.

The present invention is constructed as described above, and the mounting screw is screwed in by engaging the engagement recess provided on the top surface of the main body case with the positioning projection protruding from the ceiling surface of the outlet case. This makes it possible to assemble the main body case, which is divided into two parts (top and bottom), fix the connector body in place, and fix the cover at the same time, making the assembly process extremely easy and improving assembly accuracy. This ensures that the cover comes into contact with the front opening of the outlet case, which improves waterproofness.Furthermore, the cover is made of a heat-resistant thermosetting resin that surrounds the electrical components. The parts to be formed are divided into a flat cover, a vessel body, and a lid, which simplifies the shape of these parts and makes it easier to draw out the mold that forms the bottom of these parts. This has the effect that setting is easier than in the case of integral formation, and manufacturing is also easier.

[Brief explanation of the drawing]

Figures 1 to 8 show one embodiment of the present invention.
The figure is an exploded perspective view, Fig. 2 is a partially omitted perspective view, Fig. 3 is a plan view, Fig. 4 is a front view, Fig. 5 is a partially cutaway bottom view, and Fig. 6 is a partially cutaway perspective view.
The figures are an enlarged sectional view of the same as above, Fig. 7 is a partially enlarged perspective view, and Fig. 8 is a partially enlarged perspective view.
The figure is a plan view of the connector body with the lid removed. FIGS. 9 and 10 are sectional views showing conventional examples of the present invention, respectively. 1 is the receiving blade, 3 is the connector body, 4 is the plug blade insertion hole, 5 is the cover, 6 is the opening, 7 is the opening, 8 is the case, 9 is the mounting bif, 10 is the quick connection terminal, 15' is the 15 is a positioning protrusion, 16 is an engagement recess, and 30 is a wire insertion port.

Claims (1)

[Scope of utility model registration request] A wire insertion port for a connecting terminal that is electrically connected to each of the above-mentioned receiving blades is opened on the bottom side of the connector body containing a pair of power supply receiving blades, and a wire insertion port is opened on the front side of the connector body for each of the above-mentioned receiving blades. In a waterproof outlet, the connector body is housed in an outlet case formed by arranging a cover with a plug blade insertion hole and openings at the front and bottom of the box body. , the cover is formed into a flat plate, and an engaging stepped portion consisting of a recessed step portion that engages with the inner circumferential edge of the front opening of the outlet case is provided around the outer surface of the cover, and the connector The main body case of the main body is formed by a container body and a lid that covers the top surface of the container body, and an engaging recess is provided on the top surface of the main body case to engage with a positioning projection protruding from the ceiling surface of the outlet case. When the connector main body is fixed to the ceiling surface of the outlet case using mounting screws screwed into both sides of the main case body from below, the front surface of the main case comes into contact with the inside surface of the cover. A waterproof outlet that is characterized by: